Pencil.



PALIIINI'EDl MAR. 26, 1907.

J. c. BAUR.

i PENCIL.- APPLIUA'l-IOE FILED HOV. 19, 1906.

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JOHN o. BAUR, OE ST. LOUIS, MISSOURI.

PENCIL.

Speccation of Letters Patent.

Patented March 26, 1907.

Application filed ovember 19, 1905. Serial No. 344,085.

To alt when@ t may concern:

Be it known that l, JOHN C. BAUR, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Pencils, of which the following is a Specification.

.The present invention relates to the variety of pencils usually designated as everoint pencil and in which the lead fits oosely within the handle and is adapted to be fed and secured when projected beyond the nozzle to the required extent.

The purpose of the invention is to devise a pencil of the character aforesaid embodying novel securing means for the lead and,

which will admit of any part being readily replaced, since the construction is such as to provide for ready separation of the coperating members for any desired purpose.

For a full description of the invention and .the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings, in which- Figure 1 is a central longitudinal section of a pencil embodying the invention. Fig. 2 is a view similar to Fig. l, showing the clamp member moved forward and the end of the holder provided with a pencil-eraser. Fig. 3 is an enlarged section of the end of the handle provided with the clamp member and nozzle, showing the clamp member occupying a different position. Fig. 4 is an end view of the nozzle, showing the groove therein to receive the rib of the clamp member. Fig. 5 is an end View of the clamp member, showing more clearly the rib for cooperation with the inner groove of the nozzle. Fig. 6 is a transverse section on the lineXX of Fig. 3.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The handle 1 of. the pencil is formed with a longitudinal opening- 2 for reception of the lead 3 and may be finished in any manner or constructed of any material best adapted for the purpose and according to the cost. As shown in Fig. 2', the end of the handle may be provided with a pencil-eraser 4, which is fitted in an opening of proper size formed in the end of the'handle. The opposite end of the handle is reduced, as shown at 5, and is further reduced, as indicated at 6, the latter portion being eXteriorly threaded, whereas faces to admit of compression of the prongs when a is desired t@ grip the lead 3 to hoid the same in an adjusted position. The prongs 7 may be any length and width, and it is ttlie intention to have the same grip opposite sides of the lead upon turning the clamp member 8 upon the threaded portion 6 ofthe handle. The several parts of the handle, including the reduced portions 5 and 6 and the prongs 7, are preferable of integral formation.

The clamp member 8 is internally threaded to screw upon the reduced portion 6 and is formed with a tapered extension 9, which is adapted to engage with the outer inclined sides of the prongs 7 and press the same inward, so as to efect positive gripping of the lead 3.

A longitudinal rib 10 is formed upon the outer side of the clamp member 8 and forms interlocking connection with the nozzle 11, thereby admitting of turning the clamp member by rotating the nozzle when the handle is held stationary.

The nozzle 11 comprises a tapered end 12 and a sleeve 13, the latter being of a diameter corresponding to the diameter of the handle, so as to come iiush with the outer sides thereof. The inner end of the sleeve 13 is adapted to form a close joint with the shoulder at the base of the reduced portion 5, and the opening of the sleeve .is such as to snugly receive the reduced portion 5 and the clamp member 8. The longitudinal groove 14 of the nozzle is formed in the inner Wall of the sleeve 13 and receives the rib 10, therebyforming, in conjunction With said rib, afeatherand-spline connection between the nozzle and clamp member, whereby they may receive a relative longitudinal movement, but are caused to rotate together. The opening in the end of the nozzle is of a size to just admitof the passage of the lead 3 without lateral play. Y

When the parts are assembled, the clamp member is mounted upon the threaded portion 6 of the handle, and its tapered end 9 embraces the prongs 7 and thev nozzle encircles the reduced portion 5 of the handle and the clamp member, thereby concealing the working parts and giving a neat and lin- IOO IIO

ished appearance to the pencil, while at the same time affording a firm grip being obtained thereon when it is required to turn the clamp member either to release or grip the lead. Upon turning the nozzle in one direction the clamp member may be rotated, thereby releasing the lead, so that it may be either pressed into the handle to preserve the point or may be advanced by a quick longitudinal movement of the handle 1n the manner wellunderstood, after which the lead may be secured by rotating thefnozzle and clamp member in the opposite direction to cause the tapered end 9.- of the clamp member to ride rearward upon the prongs 7 and cau-se the same to grip the lead in a manner well understood.

Having thus described the invention7 what is' claimed as new is Y 1. ln a pencil of the character specified the combination of'a handle having an opening to receive a leadr and provided with gripping-prongs, a clamp member mounted upon the prongs and adapted to. cause the same. to: grip the lead and secure thel same in an adjusted position, andy a nozzle mounted upon the handle and having interlocking connection with the clampme-mber to. effect rota- 1tion thereof with the nozzle when turning the atter.

2. In a pencil of they character specified,.",

the combination of a handle having an open- 111g to receivelead and provided with prongs, a clamp member mounted upon the handle and prongs, and a nozzle fitted to the handle and adapted to rotate thereon and having a feather-and-spline connection with the clamp member whereb the latter may be both rotated and move longitudinally upon imparting a turning movement to the clamp member solely.

32. In a pencil of' the character specified, the combination of ahandle having an opening therein andi ovided with a reduced portion eXteri-'orly iiireaded, and with prongs, a

clam member mounted upon saidprongs Evgserew-thread connection with thereduced' portion of the handle and a nozzle fitted to the handle and having a slip-joint connection therewith and having a featherand-sp-line conneetionwith the aforesaid clamp member, whereby the latter is both rotated and moved longitudinally upon theno-zzle solely.

In testimony-whereof I alix my signature in presence of' two: witnesses. p

JOHN C. BAUR. [1.. s.] Witnesses:

WrLLmM C; LErrz, `Airrrrun LonMANN. 

